Finding the Fourth Proportional to 56,888.27, 78,505.71 and 31,396.21

Step by Step Solution

1. Step 1: Write the proportion equation
   56,888.27 : 78,505.71 = 31,396.21 : x
2. Step 2: Convert to fraction form
   56,888.27/78,505.71 = 31,396.21/x
3. Step 3: Cross multiply
   56,888.27x = 78,505.71 × 31,396.21
4. Step 4: Simplify right side
   56,888.27x = 2,464,781,443.36
5. Step 5: Solve for x
   x = 2,464,781,443.36/56,888.27
6. Step 6: Final answer
   x = 43,326.70